Abstract
By integrating the special structure of partitioned stator with the less-rare-earth PM machine, a new multi-excitation double-stator flux-switching machine (MEDS-FSM) is proposed, which has advantages of low rare-earth PM usage, high torque output and wide speed range. Considering the optimization accuracy and efficiency, a system optimal design method based on parameters sensitivity analysis (PSA) and genetic algorithm optimization (GAO) is presented for the proposed motor. The performance comparison between the initial and the optimized machine verifies the proposed method. The anti-demagnetization property and flux-weakening capability for wide-speed range operation are also analyzed, which further confirms the MEDS-FSM an interesting candidate for EV propulsion.
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